Bone and Joint Text

Bone and Joint Text - tenosynovitis Fever, skin lesions,...

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Bone and Joint Text 8.5. Microbiology Causative organism identified in 2/3 of cases Gram positive bacteria account for 70-80% of cases in university-based studies. S. aureus accounts for half of these (35-40% of all cases). Streptococcus species - most common is group A beta-hemolytic streptococci. Gram negative aerobic rods - 9-20% of cases in teaching hospitals, especially among the immunocompromised Gonococcal septic arthritis – due to Neisseria gonorrhoeae, agent causing gonorrhea - 3- 7.5% of cases in most series implies dissemination from a mucosal port of entry in a sexually active person (Remember Case 3? This patient had sexual intercourse with a new partner 7 days earlier.) o Monoarticular septic arthritis one joint involved, organism recovered from synovial fluid o Dermatitis-septic arthritis syndrome classic triad of dermatitis, migratory polyarthralgias or polyarthritis,
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Unformatted text preview: tenosynovitis Fever, skin lesions, polyarticular involvement, bacteremia 9. How is Septic Arthritis treated? An individualized treatment plan is often necessary. Treatment often involves medical and surgical modalities. Treatment "failures" are frequently due to the need for more surgical treatment as opposed to more or different antibiotics. Outcome of treatment is related to the rapidity of institution of therapy 9.1. Medical modalities: 9.1.1. Antibiotics example 1: Methicillin-sensitive S. aureus septic arthrithis - optimal antibiotics are oxacillin +/- an aminoglycoside for synergy example 2: N. gonorrhoeae septic arthritis ceftriaxone is a good choice treatment is frequently long-term (for example, 4 or more weeks)...
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Bone and Joint Text - tenosynovitis Fever, skin lesions,...

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